There's an application called Network UPS Tools (NUT).
This UPS has a Universal Serial Bus (USB) port, which can be used to connect the UPS to a personal computer (PC) and read various data from the UPS (percentage of load, input voltage, output voltage, etc.). UPDATE: As this question has been marked as unclear, I will try to make it more clear by this update using steps: So, how do I install libusb-win32 so it won't 'blink' in the Device Manager? When I uninstall libusb-win32, it's automatically substituted with default 'HID UPS Battery', which works perfectly (no 'blinking'), but doesn't give any data to NUT. But shortly after installing libusb-win32 for this UPS, the device in Device Manager starts to 'blink' (disappear and appear again), looking like it's disconnected and connected again randomly, but frequently (once in 30 seconds, approximately). I would like to use NUT for communicating with the UPS.
I have a PCM RPT-800A UPS, connected to a Windows 2012 machine.
